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Reciprocating Valve.
Patent for a reciprocating valve. This valve is adapted for use with air, gases, or liquids.
Date:
March 14, 1916
Creator:
Bean, Cecil
System:
The Portal to Texas History
Flue-Cutter
Patent for a flue cutter with a pair of pivoted arms, which can be detached, and a cutter-head.
Date:
January 14, 1890
Creator:
Bogusch, Robert J.; Zincke, August & Bogusch, Gustav
System:
The Portal to Texas History